Is RU58841 A Scam ?

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samskeyti

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For those who don't know what ru58841 is,it's a topical androgen receptor antagonist competing with other androgens in the scalp for binding to the receptor and preventing dht and testosterone from binding to the androgen receptor thus preventing hair miniaturization(in theory).It's non-steroidal.There are some studies of ru58841 done on animals which show it's efficacy;https://www.ncbi.nlm.nih.gov/pubmed/9415227
RU5884 is capable of blocking 70% from DHT binding by inhibiting the androgen receptor. When compared with the anti-androgen cyproterone acetate RU58841 showed 20% increased binding to the androgen receptor.In a study researchers compared the anti-androgen effects of RU58841 with other known anti-androgens like hydroxyflutamide and biculatamide in human prostate cells and showed that RU58841 demonstrated similar effects.In another study researchers applied 5% topical RU58841 to the bald scalp of stumptail macaques. The stumptail macaques who were treated with RU58841 displayed progression from telogen to anagen and an increase in hair follicle size as opposed to the control group. No systemic side effects were reported in the study.They described RU58841 as having ““remarkable effects on hair and folliclar regrowth in the bald frontal scalp of macaques.”Researchers performed another study on the macaque model where they examined the effects of RU58841 versus finasteride. They looked at follicular regrowth and serum level of T and DHT. They concluded that RU58841 appeared to suppress T/DHT induced follicular regression more effectively than finasteride. RU58841 also did not induce any significant changes on T and DHT levels.
After the 6 month human clinical trial they had the following to say about RU58841:
“Six months of treatment with PSK 3481(RU58841) demonstrated equivalent or better net hair growth compared with finasteride”
Resource:
  1. SAWAYA ME: RU-58841 a new therapeutic agent affecting androgen receptor molecular interactions in human hair follicles. Hair research for the next millennium. (1996) 355-358.
  2. IMAMURA K, BONFILS A, DIANI A, UNO H: The effect of topical RU58841 (androgen receptor blocker) combined with minoxidil on hair growth in macaque. J. Invest. Dermatol. 1998)110:679.
  3. PAN HJ, WILDING G, UNO H et al. Evaluation of RU-58841 as an antiandrogen in prostate pc3 cells and a topical anti-alopecia agent in the bald scalp of stumptailed macaques. Endocrine (1998) 9:39-43.
  4. BATTMAN T, BONFILS A, BRANCHE C et al.: RU-58841, a new specific topical antiandrogen: a candidate of choice for the treatment of acne, androgenetic alopecia and hirsutism.
    J. Steroid Biochem. Mol. Biol. (1994) 48:55-60.
According to all these data,RU58841's efficacy of hair maintenance and regrowth at least equivalent,even better in some cases,than that of Finasteride.Since it has a short-half life and different molecular mechanism,even if it goes systemic to some degree,that does not result in systemic side effects as it doesn't mess up with t-dht production and 5-a reductase enzymes.Also Finasteride only prevents dht-induced hair loss while ru58841 is capable of preventing all androgen-related hair loss issues since it's an androgen receptor antagonist.All these sound to good to be true.It's just like topical finasteride that yields even better results than finasteride itself without systemic hormonal disruptions.By the way the license of RU58841 was bought by different companies in the past like ProStrakan,and another French company called Roussel-Uclaf.Despite being bought by different companies and researches showing its efficacy and systemic effects-free profile,ru58841,suspiciously,has never made its way to the drug market.That's the most suspicious part.Imagine a compound,which yields even better maintenance and regrowth than 1 mg finasteride without systemic side effects never hits the market under a drug company.People say it's because of lack of interest and money.This is bullshit.I think if ru58841 is really as strong and side effects free as it's claimed to be,it would definitely make its way into to market and wipe finasteride out from the market as a hair loss treatment.If not,at least it would %100 outsell Propecia.So I think there are 3 possibilities.

1.It's far from being as effective as Finasteride in humans.All these studies don't reflect the reality therefore these companies didn't want to waste their money by investing in such a bullshit compound.
2.It's really as effective as it's claimed to be and don't produce sexual side effects,however it has different nasty sides and not safe in the long term such as involving carcinogenic metabolites.
3.It's really more effective or at least has an efficacy equivalent of 1 mg Finasteride but it's not stable in ethanol and has a really short shelf-life thus it's not logical investing in such a compund.However,this option doesn't exclude ru58841 from being effective as a home-made solution since you can prepare your own solution daily with ethanol and things like kb.Shelf-life is problematic for companies.
 
Last edited:
too much text man
 
For those who don't know what ru58841 is,it's a topical androgen receptor antagonist competing with other androgens in the scalp for binding to the receptor and preventing dht and testosterone from binding to the androgen receptor thus preventing hair miniaturization(in theory).It's non-steroidal.There are some studies of ru58841 done on animals which show it's efficacy;https://www.ncbi.nlm.nih.gov/pubmed/9415227
RU5884 is capable of blocking 70% from DHT binding by inhibiting the androgen receptor. When compared with the anti-androgen cyproterone acetate RU58841 showed 20% increased binding to the androgen receptor.In a study researchers compared the anti-androgen effects of RU58841 with other known anti-androgens like hydroxyflutamide and biculatamide in human prostate cells and showed that RU58841 demonstrated similar effects.In another study researchers applied 5% topical RU58841 to the bald scalp of stumptail macaques. The stumptail macaques who were treated with RU58841 displayed progression from telogen to anagen and an increase in hair follicle size as opposed to the control group. No systemic side effects were reported in the study.They described RU58841 as having ““remarkable effects on hair and folliclar regrowth in the bald frontal scalp of macaques.”Researchers performed another study on the macaque model where they examined the effects of RU58841 versus finasteride. They looked at follicular regrowth and serum level of T and DHT. They concluded that RU58841 appeared to suppress T/DHT induced follicular regression more effectively than finasteride. RU58841 also did not induce any significant changes on T and DHT levels.
After the 6 month human clinical trial they had the following to say about RU58841:
“Six months of treatment with PSK 3481(RU58841) demonstrated equivalent or better net hair growth compared with finasteride”
Resource:
  1. SAWAYA ME: RU-58841 a new therapeutic agent affecting androgen receptor molecular interactions in human hair follicles. Hair research for the next millennium. (1996) 355-358.
  2. IMAMURA K, BONFILS A, DIANI A, UNO H: The effect of topical RU58841 (androgen receptor blocker) combined with minoxidil on hair growth in macaque. J. Invest. Dermatol. 1998)110:679.
  3. PAN HJ, WILDING G, UNO H et al. Evaluation of RU-58841 as an antiandrogen in prostate pc3 cells and a topical anti-alopecia agent in the bald scalp of stumptailed macaques. Endocrine (1998) 9:39-43.
  4. BATTMAN T, BONFILS A, BRANCHE C et al.: RU-58841, a new specific topical antiandrogen: a candidate of choice for the treatment of acne, androgenetic alopecia and hirsutism.
    J. Steroid Biochem. Mol. Biol. (1994) 48:55-60.
According to all these data,RU58841's efficacy of hair maintenance and regrowth at least equivalent,even better in some cases,than that of Finasteride.Since it has a short-half life and different molecular mechanism,even if it goes systemic to some degree,that does not result in systemic side effects as it doesn't mess up with t-dht production and 5-a reductase enzymes.Also Finasteride only prevents dht-induced hair loss while ru58841 is capable of preventing all androgen-related hair loss issues since it's an androgen receptor antagonist.All these sound to good to be true.It's just like topical finasteride that yields even better results than finasteride itself without systemic hormonal disruptions.By the way the license of RU58841 was bought by different companies in the past like ProStrakan,and another French company called Roussel-Uclaf.Despite being bought by different companies and researches showing its efficacy and systemic effects-free profile,ru58841,suspiciously,has never made its way to the drug market.That's the most suspicious part.Imagine a compound,which yields even better maintenance and regrowth than 1 mg finasteride without systemic side effects never hits the market under a drug company.People say it's because of lack of interest and money.This is bullshit.I think if ru58841 is really as strong and side effects free as it's claimed to be,it would definitely make its way into to market and wipe finasteride out from the market as a hair loss treatment.If not,at least it would %100 outsell Propecia.So I think there are 3 possibilities.

1.It's far from being as effective as Finasteride in humans.All these studies don't reflect the reality therefore these companies didn't want to waste their money by investing in such a bullshit compound.
2.It's really as effective as it's claimed to be and don't produce sexual side effects,however it has different nasty sides and not safe in the long term such as involving carcinogenic metabolites.
3.It's really more effective or at least has an efficacy equivalent of 1 mg Finasteride but it's not stable in ethanol and has a really short shelf-life thus it's not logical investing in such a compund.However,this option doesn't exclude ru58841 from being effective as a home-made solution since you can prepare your own solution daily with ethanol and things like kb.Shelf-life is problematic for companies.
Niggaread
 
  • +1
Reactions: WillVisitGandy
Nice essay but ZERO care until YOU use it and show us the result
 
User modified on lookism already addressed this years ago
 
  • +1
Reactions: curryslayerordeath
i don't use new products which haven't tested enough yet, sorry.
so i don't care if it's scam or not.
 

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